Trane
ODF
ProtectOutdoor fan fail
Fan not turning. Compressor may still run and then HPS.
Walk ODF in Diagnose
2 plates — walk the one on the cabinet
First check
1 Heat rejection first
On Trane XR16 high pressure is outdoor airflow until proven otherwise. Fan running the right direction, coil clean, fins not folded, no recirc over a fence or through a garage. Dual-cap FAN section µF vs sticker. A good HERM and a dead FAN is the usual Comfort call.
Expect: OD fan on, coil clean, discharge air leaving the top/side freely.
The rest of the walkthrough is Diagnose.
On the plates
- Dual-cap FAN section µF vs sticker. A good HERM and a dead FAN is the usual Comfort call.
- Fan motor ohms / ground, blade clearance, capacitor wiring (C / FAN / HERM).
- Not an inverter fan module — there isn’t one.
Plates that use ODF
Same number, other makers
ODF on Trane is not the same code on these plates.